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. 2000 Jul;33(1-3):117–122. doi: 10.1023/A:1008154326954

Micropattern-immobilization of heparin to regulate cell growth with fibroblast growth factor

Yong Soon Park 1, Yoshihiro Ito 2,3,✉
PMCID: PMC3466710  PMID: 19002818

Abstract

Heparin was immobilized on a polystyrene plate in a specificpattern by photolithography. Heparin was coupled with azidoaniline. Thederivatized heparin was cast on the polystyrene plate from aqueoussolution. After drying, the plate was photo-irradiated in the presence of aphotomask. The micropatterning was confirmed by staining with a dye,ethydium bromide. Since heparin has negative charges, the cationic dyewas adsorbed on the regions where heparin was immobilized. In thepresence fibroblast growth factor (FGF), the growth of mouse fibroblastSTO cells was enhanced only on the heparin-immobilized regions. Thisresult indicated that micropattern-immobilized heparin activated FGF forcell growth activity.

Keywords: biomaterial, cell growth, fibroblast growth facor, heparin, pattern-immobilization

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